Click on the Download link below and save the file to your hard drive.

Make sure that the MD400 or MD400g is removed from your computer.

Browse to the location where the downloaded zip file was stored.

Double-click the zip file and choose [EXTRACT] to a new/empty folder.

Run the "setup.exe" file. The Wizard for the Wireless Manager displays. Follow the on-screen instructions. When installation is complete, click Finish. Fully insert the MD400 or MD400g (with SIM card) into your computer.

After a few seconds the New Hardware wizard displays and driver software installation takes place.